Roundoor 

The shape that is formed by the combination of a semi-circle and a rectangle or square

I think that shape is called a roundoor because it resembles a round door.

Roundoor by 123sillyme October 3, 2017

RoundCornerConnection

The "RoundCornerConnection", also the "RCC", is an independent studio dedicated mostly to creating games but aims to take the industry to another level within "customer and developer-interaction", pricing and creativity.

www.roundcornerconnection.com is their Website.

The RoundCornerConnection is famous for it's outstanding reputition in the digital media industry!

RoundCornerConnection by ProleProphet_Dev February 4, 2023